<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span href="#">全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 面包屑-商品分类名 -->
            <li class="with-x" v-show="searchParams.categoryName">
              {{ searchParams.categoryName
              }}<i @click="removeCategoryName">×</i>
            </li>

            <!-- 面包屑-关键词 -->
            <li class="with-x" v-show="searchParams.keyword">
              {{ searchParams.keyword }}<i @click="removeKeyword">×</i>
            </li>

            <!-- 面包屑-品牌名 -->
            <li class="with-x" v-show="searchParams.trademark">
              {{ searchParams.trademark.split(":")[1]
              }}<i @click="removeTrademark">×</i>
            </li>

            <!-- 面包屑-属性 -->
            <!-- 数组没有元素就不会循环和遍历 -->
            <li
              class="with-x"
              v-for="(p, index) in searchParams.props"
              :key="index"
            >
              {{ p | goodsAttrs }}<i @click="removegoodsAttrs(index)">×</i>
            </li>
          </ul>
        </div>

        <!-- 搜索器 -->
        <SearchSelector v-if="total" @gettrademark="savetrademark" @getattrs="saveattrs" />

        <!--商品展示区-->
        <div class="details clearfix" v-if="total">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="{active:orderType ==='1'}" @click="changeType('1')">
                  <a >综合 <span v-show="orderType ==='1'" class="iconfont" :class="orderFlag"></span></a>
                </li>
                <li :class="{active:orderType ==='2'}" @click="changeType('2')">
                  <a >价格 <span v-show="orderType ==='2'" class="iconfont" :class="orderFlag"></span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="g in goodsList" :key="g.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${g.id}`"
                      ><img :src="g.defaultImg"
                    /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ g.price }}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link :to="`/detail/${g.id}`"  :title="g.title">{{
                      g.title
                    }}</router-link>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination :total="Number(total)" :pageSize="searchParams.pageSize" :pageNo="searchParams.pageNo" :continues="5" :changePageNo="changePageNo"/>
        </div>

        <!-- 没有商品数据 -->
        <div class="empty" v-if="!total">
          <img src="https://static.360buyimg.com/devfe/error-new/1.0.0/css/i/error_06.png" alt="">
          <h1>抱歉，搜索结果为空！</h1>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector";
import { mapState } from "vuex";
export default {
  name: "Search",
  components: {
    SearchSelector,
  },
  data() {
    return {
      searchParams: {
        category1Id: "", //一级分类 ID【可选参数】
        category2Id: "", //二级分类 ID【可选参数】
        category3Id: "", //三级分类 ID【可选参数】
        categoryName: "", //分类名字【可选参数】
        keyword: "", //搜索关键字【可选参数】
        order: "1:desc", //排序【可选参数】
        props: [], //商品属性【可选参数】
        trademark: "", //商品品牌【可选参数】
        pageNo: 1, //当前页码【必选参数】
        pageSize: 10, //每页展示数量【必选参数】
      },
    };
  },
  watch: {
    // 不需要添加deep
    // 每次$route发生变化 都会产生一个新的$route对象
    $route: {
      // 立即监听：为了让第一次搜索的时候，可以拿到参数
      immediate: true,
      // value是$route
      handler(value) {
        Object.assign(
          this.searchParams,
          {
            category1Id: "", //一级分类 ID【可选参数】
            category2Id: "", //二级分类 ID【可选参数】
            category3Id: "", //三级分类 ID【可选参数】
            categoryName: "", //分类名字【可选参数】
            keyword: "", //搜索关键字【可选参数】
          },
          value.query
        );
        // 当地址栏的参数发生变化之后需要重新发送请求
        this.$store.dispatch("search/asyncgetGoodsList", this.searchParams);
      },
    },

    // searchParams变化 就会重新发一次请求
    searchParams: {
      deep: true,
      handler() {
        //调用 store 中的 actions 方法请求搜索列表的数据
        this.$store.dispatch("search/asyncgetGoodsList", this.searchParams);
      },
    },
  },
  mounted() {
    this.$store.dispatch("search/asyncgetGoodsList", this.searchParams);
  },
  computed: {
    ...mapState({
      goodsList: (state) => state.search.goodslist.goodsList,
      total:state => state.search.goodslist.total
    }),
    // 交互类型
    orderType(){
      return this.searchParams.order.split(':')[0]
    },
    // 交互flag
    orderFlag(){
      let flag = this.searchParams.order.split(':')[1]
      return flag === 'desc' ? "icon-icon_down":"icon-icon_up"
    }
  },
  methods: {
    // 移除商品分类名
    removeCategoryName() {
      // 这里依赖着 watch对 '$route'的监听
      // 获取保存 keyword 变化
      let { keyword } = this.$route.query;

      // 跳转路由
      this.$router.push({
        path: "/search",
        query: {
          keyword,
        },
      });
    },
    // 移除关键词
    removeKeyword() {
      // 获取地址栏的参数
      let { query } = this.$route;
      this.$router.push({
        path: "/search",
        query: {
          ...query,
          keyword: undefined,
        },
      });
      // 清空搜索框的keyword
      this.$bus.$emit("clearKeyword");
    },
    // 获取品牌名
    savetrademark(t) {
      this.searchParams.trademark = t.tmId + ":" + t.tmName;
    },
    // 移除品牌名
    removeTrademark() {
      // 清空 searchparams 中的 Trademark 数据
      this.searchParams.trademark = "";
      // 当地址栏的参数发生变化之后需要重新发送请求
      //   this.$store.dispatch("search/asyncgetGoodsList", this.searchParams);
    },
    // 获取属性
    saveattrs(a, a1) {
      // console.log(a,a1);
      // 将后台要的格式 拼接出来并且赋值给字符串
      let str = a.attrId + ":" + a1 + ":" + a.attrName;
      // console.log(str);
      // 面包屑不能重复添加
      if (!this.searchParams.props.includes(str)) {
        // 向searchParams 中的props 添加商品属性
        this.searchParams.props.push(str);
      }

      // 当地址栏的参数发生变化之后需要重新发送请求
      //   this.$store.dispatch("search/asyncgetGoodsList", this.searchParams);
    },
    // 移除属性
    removegoodsAttrs(index) {
      // 删除某个元素
      this.searchParams.props.splice(index, 1);

      //调用 store 中的 actions 方法请求搜索列表的数据
      //    this.$store.dispatch("search/asyncgetSearchList", this.searchParams);
    },
    // 父组件传递给子组件的方法
    changePageNo(n){
      this.searchParams.pageNo = n
    },
    // 切换type
    changeType(type){
      // 获取之前的 order数据  
      let [currentType,currentFlag] = this.searchParams.order.split(':');
      // console.log(currentType,currentFlag);
      //判断点击的type【字符串】 和 目前的数据 currentType【字符串】
      if(type === currentType){
        //若相等，则改变图标
        let flag = currentFlag === 'asc'? 'desc':'asc'
        this.searchParams.order = type + ':' +flag
      }else{
        //若不相等，则改变type 和 固定的  降序
        this.searchParams.order = type + ':desc'
      }
    }
  },
  // 过滤器
  filters: {
    goodsAttrs(p) {
      return p.split(":")[2] + ":" + p.split(":")[1];
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
  .empty{
    margin:5px auto;
    text-align: center;
    h1{
      color:#999
    }
  }
}
</style>
